From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,T_DKIMWL_WL_HIGH, URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by aws-us-west-2-korg-lkml-1.web.codeaurora.org (Postfix) with ESMTP id 9F096C433EF for ; Thu, 14 Jun 2018 14:07:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5559D208DB for ; Thu, 14 Jun 2018 14:07:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="FPR08gv9" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5559D208DB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965021AbeFNOHX (ORCPT ); Thu, 14 Jun 2018 10:07:23 -0400 Received: from mail.kernel.org ([198.145.29.99]:47566 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965005AbeFNOHT (ORCPT ); Thu, 14 Jun 2018 10:07:19 -0400 Received: from localhost (LFbn-1-12247-202.w90-92.abo.wanadoo.fr [90.92.61.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 8D6BF208CB; Thu, 14 Jun 2018 14:07:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1528985239; bh=tb9UEx826B5Q1go3G42pzvLcCope3v8OPJz+2QYAEo0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FPR08gv93AFg86YKq7c6BVlNeSYH0+qZKJFXRQ7zbgKQpD5RwJJCdsSvkncN6BKHe q5r5OK9ZfzAbc41AX43j3cSeAmAApsNVwnWeG8q4kkxo7K2kW002Bw4nx/ht6m0zZr MoW9okIN8oj7sykADVeebGfEy3IfdSrxBvWNUO2E= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Simon Horman , Yoshihiro Shimoda , Felipe Balbi Subject: [PATCH 4.17 23/45] usb: gadget: udc: renesas_usb3: should fail if devm_phy_get() returns error Date: Thu, 14 Jun 2018 16:04:14 +0200 Message-Id: <20180614132128.020041952@linuxfoundation.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180614132126.797006529@linuxfoundation.org> References: <20180614132126.797006529@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.17-stable review patch. If anyone has any objections, please let me know. ------------------ From: Yoshihiro Shimoda commit 0259068f63f23a665ded28647f2f9cdb6b20dc72 upstream. This patch fixes an issue that this driver ignores errors other than the non-existence of the device, f.e. a memory allocation failure in devm_phy_get(). So, this patch replaces devm_phy_get() with devm_phy_optional_get(). Reported-by: Simon Horman Fixes: 279d4bc64060 ("usb: gadget: udc: renesas_usb3: add support for generic phy") Cc: # v4.15+ Reviewed-by: Simon Horman Signed-off-by: Yoshihiro Shimoda Signed-off-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman --- drivers/usb/gadget/udc/renesas_usb3.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) --- a/drivers/usb/gadget/udc/renesas_usb3.c +++ b/drivers/usb/gadget/udc/renesas_usb3.c @@ -2636,9 +2636,11 @@ static int renesas_usb3_probe(struct pla * This is optional. So, if this driver cannot get a phy, * this driver will not handle a phy anymore. */ - usb3->phy = devm_phy_get(&pdev->dev, "usb"); - if (IS_ERR(usb3->phy)) - usb3->phy = NULL; + usb3->phy = devm_phy_optional_get(&pdev->dev, "usb"); + if (IS_ERR(usb3->phy)) { + ret = PTR_ERR(usb3->phy); + goto err_add_udc; + } pm_runtime_enable(&pdev->dev); ret = usb_add_gadget_udc(&pdev->dev, &usb3->gadget);